US4733390A - Data transmission system - Google Patents
Data transmission system Download PDFInfo
- Publication number
- US4733390A US4733390A US06/904,677 US90467786A US4733390A US 4733390 A US4733390 A US 4733390A US 90467786 A US90467786 A US 90467786A US 4733390 A US4733390 A US 4733390A
- Authority
- US
- United States
- Prior art keywords
- data
- circuit means
- priority
- transmission line
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
- H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
Abstract
Description
i modulo (j)=k modulo (j)
Claims (6)
N=m×j.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60201574A JPS6262697A (en) | 1985-09-13 | 1985-09-13 | Data transmission control system |
JP60-201574 | 1985-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4733390A true US4733390A (en) | 1988-03-22 |
Family
ID=16443315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/904,677 Expired - Fee Related US4733390A (en) | 1985-09-13 | 1986-09-08 | Data transmission system |
Country Status (3)
Country | Link |
---|---|
US (1) | US4733390A (en) |
JP (1) | JPS6262697A (en) |
CA (1) | CA1261083A (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4839892A (en) * | 1987-08-27 | 1989-06-13 | Nec Corporation | Concentrator system capable of completing emergency calls under congested traffic |
US4888765A (en) * | 1988-08-22 | 1989-12-19 | Rockwell International Corporation | Digital loop carrier system having programmable timeslot and bandwidth allocation circuit |
US4916692A (en) * | 1988-03-14 | 1990-04-10 | Racal Data Communications Inc. | TDM bus controller |
EP0432678A1 (en) * | 1989-12-15 | 1991-06-19 | Alcatel N.V. | High-speed synchronous transmission line access terminal |
US5123100A (en) * | 1989-01-13 | 1992-06-16 | Nec Corporation | Timing control method in a common bus system having delay and phase correcting circuits for transferring data in synchronization and time division slot among a plurality of transferring units |
US5124980A (en) * | 1989-03-20 | 1992-06-23 | Maki Gerald G | Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable |
US5175536A (en) * | 1990-08-01 | 1992-12-29 | Westinghouse Electric Corp. | Apparatus and method for adapting cards designed for a VME bus for use in a VXI bus system |
AU639183B2 (en) * | 1991-07-01 | 1993-07-15 | American Telephone And Telegraph Company | Method for operating an asynchronous packet bus for transmission of asynchronous and isochronous information |
US5251208A (en) * | 1991-12-19 | 1993-10-05 | At&T Bell Laboratories | Digital signal processor synchronous network |
EP0594780A1 (en) * | 1991-07-16 | 1994-05-04 | Digital Technics, Inc. | Modular, user programmable telecommunications system with distributed processing |
US5343472A (en) * | 1990-03-30 | 1994-08-30 | Mazda Motor Corporation | Multiplex transmission system for use in vehicles |
US5912890A (en) * | 1995-12-29 | 1999-06-15 | Lg Information Communications, Ltd. | Statistical multiplexing apparatus in a time division multiplexing bus |
US5973609A (en) * | 1990-04-25 | 1999-10-26 | Telxon Corporation | Communication system with adaptive media access control |
US6285751B1 (en) * | 1999-01-07 | 2001-09-04 | Iq Net Solutions, Inc. | PBX system having line cards and phone cards which exhibit reciprocal relationships |
EP1223711A2 (en) * | 2001-01-09 | 2002-07-17 | Lucas Industries Limited | Method of and apparatus for transmitting data in a distributed processor system |
US20030193941A1 (en) * | 2002-03-30 | 2003-10-16 | Bonomi Flavio Giovanni | Packet scheduling particularly applicable to systems including a non-blocking switching fabric and homogeneous or heterogeneous line card interfaces |
US20040017827A1 (en) * | 2002-07-18 | 2004-01-29 | Xuejun You | Method for dynamic allocation of slot bandwidth of an exchanger |
US20050226263A1 (en) * | 2004-04-12 | 2005-10-13 | Cisco Technology, Inc., A California Corporation | Weighted random scheduling particularly applicable to packet switching systems |
US6956866B1 (en) | 2001-05-23 | 2005-10-18 | Cisco Technology, Inc. | Method and apparatus for collecting statistics from elements at multiple collection rates |
US20060062144A1 (en) * | 2002-11-15 | 2006-03-23 | Cisco Technology, Inc., A California Corporation | Tokens in token buckets maintained among primary and secondary storages |
US20070171824A1 (en) * | 2006-01-25 | 2007-07-26 | Cisco Technology, Inc. A California Corporation | Sampling rate-limited traffic |
US7304942B1 (en) | 2002-11-15 | 2007-12-04 | Cisco Technology, Inc. | Methods and apparatus for maintaining statistic counters and updating a secondary counter storage via a queue for reducing or eliminating overflow of the counters |
US20080025214A1 (en) * | 2006-07-27 | 2008-01-31 | Cisco Technology, Inc., A California Corporation | Multilevel coupled policer |
US7391721B1 (en) | 2004-07-08 | 2008-06-24 | Cisco Technology, Inc. | Maintaining counters and updating a secondary counter storage |
US7408937B1 (en) | 2003-01-09 | 2008-08-05 | Cisco Technology, Inc. | Methods and apparatus for identifying a variable number of items first in sequence from a variable starting position which may be particularly useful by packet or other scheduling mechanisms |
US7453898B1 (en) | 2002-03-30 | 2008-11-18 | Cisco Technology, Inc. | Methods and apparatus for simultaneously scheduling multiple priorities of packets |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488290A (en) * | 1982-08-04 | 1984-12-11 | M/A-Com Linkabit, Inc. | Distributed digital exchange with improved switching system and input processor |
US4631534A (en) * | 1984-11-13 | 1986-12-23 | At&T Information Systems Inc. | Distributed packet switching system |
US4656627A (en) * | 1984-11-21 | 1987-04-07 | At&T Company | Multiphase packet switching system |
-
1985
- 1985-09-13 JP JP60201574A patent/JPS6262697A/en active Pending
-
1986
- 1986-09-08 US US06/904,677 patent/US4733390A/en not_active Expired - Fee Related
- 1986-09-11 CA CA000517993A patent/CA1261083A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4488290A (en) * | 1982-08-04 | 1984-12-11 | M/A-Com Linkabit, Inc. | Distributed digital exchange with improved switching system and input processor |
US4631534A (en) * | 1984-11-13 | 1986-12-23 | At&T Information Systems Inc. | Distributed packet switching system |
US4656627A (en) * | 1984-11-21 | 1987-04-07 | At&T Company | Multiphase packet switching system |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU594629B2 (en) * | 1987-08-27 | 1990-03-08 | Nec Corporation | Concentrator system capable of completing emergency calls under congested traffic |
US4839892A (en) * | 1987-08-27 | 1989-06-13 | Nec Corporation | Concentrator system capable of completing emergency calls under congested traffic |
US4916692A (en) * | 1988-03-14 | 1990-04-10 | Racal Data Communications Inc. | TDM bus controller |
US4888765A (en) * | 1988-08-22 | 1989-12-19 | Rockwell International Corporation | Digital loop carrier system having programmable timeslot and bandwidth allocation circuit |
US5123100A (en) * | 1989-01-13 | 1992-06-16 | Nec Corporation | Timing control method in a common bus system having delay and phase correcting circuits for transferring data in synchronization and time division slot among a plurality of transferring units |
US5124980A (en) * | 1989-03-20 | 1992-06-23 | Maki Gerald G | Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable |
EP0432678A1 (en) * | 1989-12-15 | 1991-06-19 | Alcatel N.V. | High-speed synchronous transmission line access terminal |
US5161152A (en) * | 1989-12-15 | 1992-11-03 | Alcatel Network Systems, Inc. | High-speed synchronous transmission line access terminal |
US5343472A (en) * | 1990-03-30 | 1994-08-30 | Mazda Motor Corporation | Multiplex transmission system for use in vehicles |
US5973609A (en) * | 1990-04-25 | 1999-10-26 | Telxon Corporation | Communication system with adaptive media access control |
US5175536A (en) * | 1990-08-01 | 1992-12-29 | Westinghouse Electric Corp. | Apparatus and method for adapting cards designed for a VME bus for use in a VXI bus system |
US5396494A (en) * | 1991-07-01 | 1995-03-07 | At&T Corp. | Method for operating an asynchronous packet bus for transmission of asynchronous and isochronous information |
AU639183B2 (en) * | 1991-07-01 | 1993-07-15 | American Telephone And Telegraph Company | Method for operating an asynchronous packet bus for transmission of asynchronous and isochronous information |
EP0594780A1 (en) * | 1991-07-16 | 1994-05-04 | Digital Technics, Inc. | Modular, user programmable telecommunications system with distributed processing |
EP0594780A4 (en) * | 1991-07-16 | 1994-07-13 | Digital Technics Inc | Modular, user programmable telecommunications system with distributed processing |
US5251208A (en) * | 1991-12-19 | 1993-10-05 | At&T Bell Laboratories | Digital signal processor synchronous network |
US5912890A (en) * | 1995-12-29 | 1999-06-15 | Lg Information Communications, Ltd. | Statistical multiplexing apparatus in a time division multiplexing bus |
US6285751B1 (en) * | 1999-01-07 | 2001-09-04 | Iq Net Solutions, Inc. | PBX system having line cards and phone cards which exhibit reciprocal relationships |
EP1223711A2 (en) * | 2001-01-09 | 2002-07-17 | Lucas Industries Limited | Method of and apparatus for transmitting data in a distributed processor system |
EP1223711A3 (en) * | 2001-01-09 | 2004-03-24 | Goodrich Control Systems Limited | Method of and apparatus for transmitting data in a distributed processor system |
US6956866B1 (en) | 2001-05-23 | 2005-10-18 | Cisco Technology, Inc. | Method and apparatus for collecting statistics from elements at multiple collection rates |
US20030193941A1 (en) * | 2002-03-30 | 2003-10-16 | Bonomi Flavio Giovanni | Packet scheduling particularly applicable to systems including a non-blocking switching fabric and homogeneous or heterogeneous line card interfaces |
US7453898B1 (en) | 2002-03-30 | 2008-11-18 | Cisco Technology, Inc. | Methods and apparatus for simultaneously scheduling multiple priorities of packets |
US7184443B2 (en) | 2002-03-30 | 2007-02-27 | Cisco Technology, Inc. | Packet scheduling particularly applicable to systems including a non-blocking switching fabric and homogeneous or heterogeneous line card interfaces |
US7289443B1 (en) | 2002-03-30 | 2007-10-30 | Cisco Technology, Inc. | Slow-start packet scheduling particularly applicable to systems including a non-blocking switching fabric and homogeneous or heterogeneous line card interfaces |
US20040017827A1 (en) * | 2002-07-18 | 2004-01-29 | Xuejun You | Method for dynamic allocation of slot bandwidth of an exchanger |
US7532641B2 (en) * | 2002-07-18 | 2009-05-12 | Huawei Technologies Co., Ltd. | Method for dynamic allocation of slot bandwidth on a switch |
US20060062144A1 (en) * | 2002-11-15 | 2006-03-23 | Cisco Technology, Inc., A California Corporation | Tokens in token buckets maintained among primary and secondary storages |
US7599287B2 (en) | 2002-11-15 | 2009-10-06 | Cisco Technology, Inc. | Tokens in token buckets maintained among primary and secondary storages |
US7304942B1 (en) | 2002-11-15 | 2007-12-04 | Cisco Technology, Inc. | Methods and apparatus for maintaining statistic counters and updating a secondary counter storage via a queue for reducing or eliminating overflow of the counters |
US7408937B1 (en) | 2003-01-09 | 2008-08-05 | Cisco Technology, Inc. | Methods and apparatus for identifying a variable number of items first in sequence from a variable starting position which may be particularly useful by packet or other scheduling mechanisms |
US20050226263A1 (en) * | 2004-04-12 | 2005-10-13 | Cisco Technology, Inc., A California Corporation | Weighted random scheduling particularly applicable to packet switching systems |
US7061927B2 (en) | 2004-04-12 | 2006-06-13 | Cisco Technology, Inc. | Weighted random scheduling particularly applicable to packet switching systems |
US7391721B1 (en) | 2004-07-08 | 2008-06-24 | Cisco Technology, Inc. | Maintaining counters and updating a secondary counter storage |
US20070171824A1 (en) * | 2006-01-25 | 2007-07-26 | Cisco Technology, Inc. A California Corporation | Sampling rate-limited traffic |
US8018845B2 (en) | 2006-01-25 | 2011-09-13 | Cisco Technology, Inc | Sampling rate-limited traffic |
US20080025214A1 (en) * | 2006-07-27 | 2008-01-31 | Cisco Technology, Inc., A California Corporation | Multilevel coupled policer |
US8077611B2 (en) | 2006-07-27 | 2011-12-13 | Cisco Technology, Inc. | Multilevel coupled policer |
Also Published As
Publication number | Publication date |
---|---|
CA1261083A (en) | 1989-09-26 |
JPS6262697A (en) | 1987-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KABUSHIKI KAISHA TOSHIBA, 72 HORIKAWA-CHO, SAIWAI- Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SHIRAKAWA, MASAKAZU;HASEGAWA, HIROYUKI;REEL/FRAME:004818/0410 Effective date: 19870826 Owner name: KABUSHIKI KAISHA TOSHIBA, A CORP. OF JAPAN,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHIRAKAWA, MASAKAZU;HASEGAWA, HIROYUKI;REEL/FRAME:004818/0410 Effective date: 19870826 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20000322 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |